What We Do


Expert Witness


Allin / Rose Consulting, Inc., has worked with lawyers for years on both sides of the legal table, providing expert witness testimony for plaintiffs and defendants.  They are qualified as expert witnesses on snow plowing in numerous states around the country, and regularly assist legal representatives in winter accident actions including slip-and-fall incidents on commercial sites involving snow and ice.  Having worked in every state performing snow and ice management as well as doing expert witness cases, no one is better qualified to opine on whether involved parties have performed in an acceptable fashion before, during, and after a snow or ice event.


Allin / Rose Consulting, Inc., expert witness services include:


  • Snow and ice slip and fall case review 
  • Expert witness testimony related to snow and ice mitigation
  • Snow removal technique review


To request more information, please fill out and submit the form below:


John and Lisa have been qualified as expert witnesses on snowplowing in numerous states around the country and regularly assist legal representatives in actions involving winter accidents including slip-and-fall incidents on commercial sites.  




Globally recognized as leading snow and ice industry consultants, the staff of Allin / Rose Consulting, Inc., have spent over 50 years developing and testing snow removal strategies from one of the most intense, lake-effect, snow-belt regions in the world: the south shores North America's Great Lake Erie.  Allin / Rose Consulting, Inc., is North America's top snow contracting consultants.  


Allin / Rose Consulting, Inc., consults with contractors on snow plowing projects including airports, universities, large commercial properties and multi-location accounts.  Facility and property managers also rely on Allin / Rose Consulting, Inc., for Snow Response Plan consulting and specification writing. Allin / Rose Consulting, Inc., will make certain that specifications call for efficient state-of-the-art equipment, which allows the contractor or property manager to clear snow at the best possible price.


By working with both sides, Allin / Rose Consulting can assure both parties get a fair deal and still get the job done, no matter what pricing format is utilized (per truck per hour; per push; per season; per inch; etc.).


We are global snow experts, snow industry leaders, and snow plow consultants.




A popular and internationally recognized speaker and seminar leader, John Allin has lectured about the snow and ice industry at industry trade shows all over the United States, Canada, Scandinavia, Europe, and Asia.  He truly is a global snow expert.​


John and Lisa also facilitate one-day seminars, which are held at various locations across the country and/or online throughout the year.  These one-day seminars feature comprehensive information about how you can set your company apart from your competition.


Following is a list of seminar locations:


GIE National Convention on snow removal (1994, 1995, 1996, 1997, 1998, 1999, 2001, 2003)

Power Equipment Expo in Louisville, Kentucky (1996, 1997)

Rental Dealers Association (1996, 1997)

Ohio Landscape Association annual meeting (1996, 1998, 2003, 2010)

Illinois Landscape Contractors Association (1999)

New Jersey Landscape Contractors Association (1999, 2002, 2012)

SUNY Physical Plant Administrators Association Annual Meeting (1999)

Chicago Buildings & Real Estate Trade Show (1999)

The Landscape Contractors Assoc. of MD (2000)

The International Cold Weather Show in Washington, DC (2000)

Keynote speaker at Michigan Green Industry Association (2005)

New England Grows (2002, 2005)

AAAE Environmental Conference in London, England (2006)

China-Beijing International High-Tech Expo (2006)

AAAE New Technology Conference in Prague (2006)

European Snow Symposium (2006)

Western Pennsylvania Trial Lawyers Association (2020)

ISO Gap Assessments

Allin / Rose Consulting, Inc., provides a Pre-Audit Gap Assessment service for those contractors who seek to become certified by ISO in the area of snow and ice management. If you would like to learn more, visit Peggy Allin's page HERE.